hmmm, how did you perform the install in reference to intsalling grub,, and replacing ntldr?, are you saying it is loading the windows media screen and then failing?, or grub is loading and failing? if the first u may have corrupted system files on the windows system partition possibly checkdsk or fixboot will repair,, if the second u should probably boot into ubuntu and fix the grub menu to properly point at the windows active sys partition =) becareful
Cycling for Charities 
What an awesome way to explain this-now I know evhentriyg!
hmmm, how did you perform the install in reference to intsalling grub,, and replacing ntldr?, are you saying it is loading the windows media screen and then failing?, or grub is loading and failing? if the first u may have corrupted system files on the windows system partition possibly checkdsk or fixboot will repair,, if the second u should probably boot into ubuntu and fix the grub menu to properly point at the windows active sys partition =) becareful